Drush site-install help - errors - task failed

Can anyone give me a clue as to what is wrong?

I've only just started learning drush, so help from experienced users much appreciated please.

Apologies in advance if I haven't selected the right version from the list or component.

I'm moving an old Drupal 5 site to Drupal 6 with a posgreSQL database.

The database is created, but there are no tables inside.

[root@delta drupal-6]# drush version

  drush version 4.5
</code
 
<code>
# Create Drupal 6 directory.
[root@delta~]

	mkdir /var/local/drupal-6

	pushd /var/local/drupal-6
	
	  # Download latest version of Drupal 6.
	  drush dl drupal-6.x

		Project drupal (6.x-dev) downloaded to /var/local/drupal-6/drupal-6.x-dev.       [success]
		Project drupal contains:                                                 	 [success]
		 - 1 profile: default
		 - 6 themes: marvin, chameleon, bluemarine, pushbutton, minnelli, garland
		 - 33 modules: node, color, help, locale, translation, tracker, ping, 
		    upload, syslog, statistics, taxonomy, throttle, user, php, search, 
		    path, dblog, book, openid, update, aggregator, block, forum, comment, 
		    filter, blog, trigger, contact, menu, blogapi, poll, profile, system
	popd

	pushd /var/local/drupal-6/drupal-6.x-dev

	  # Install 'finigan' site.
	  drush --debug site-install standard --sites-subdir=finigan --db-url=pgsql://shamrock:notused@localhost/finigan

	popd

-----------------------------------------

drush --debug site-install standard --sites-subdir=finigan --db-url=pgsql://shamrock:notused@localhost/finigan
Bootstrap to phase 0. [0.07 sec, 2.56 MB]                                                            [bootstrap]
Drush bootstrap phase : _drush_bootstrap_drush() [0.08 sec, 2.76 MB]                                 [bootstrap]
Bootstrap to phase 1. [0.2 sec, 5.83 MB]                                                             [bootstrap]
Drush bootstrap phase : _drush_bootstrap_drupal_root() [0.2 sec, 5.84 MB]                            [bootstrap]
Initialized Drupal 6.23-dev root directory at /var/local/drupal-6/drupal-6.x-dev [0.25 sec, 6.63 MB] [notice]
Found command: site-install (commandfile=core) [0.25 sec, 6.63 MB]                                   [bootstrap]
Initializing drush commandfile: user [0.26 sec, 6.63 MB]                                             [bootstrap]
You are about to create a sites/finigan/files directory and create a 
  sites/finigan/settings.php file and DROP your 'finigan' database and then 
  CREATE a new one. Do you want to continue? (y/n): y
Calling mkdir(sites/finigan) [3.03 sec, 6.65 MB]                                                     [debug]
Calling copy(sites/default/default.settings.php, sites/finigan/settings.php) [3.03 sec, 6.65 MB]     [debug]
Calling mkdir(sites/finigan/files) [3.04 sec, 6.66 MB]                                               [debug]
Drush bootstrap phase : _drush_bootstrap_drupal_site() [3.04 sec, 6.66 MB]                           [bootstrap]
Initialized Drupal site finigan at sites/finigan [3.04 sec, 6.66 MB]                                 [notice]
Drush bootstrap phase : _drush_bootstrap_drupal_configuration() [3.07 sec, 6.67 MB]                  [bootstrap]
Calling system(psql -q  --dbname=template1 --host=localhost --port=5432 
  --username=shamrock --no-align --field-separator='	' --pset footer=off --file /tmp/phpsZ62mC);
  Executing: php -r 'error_reporting(E_ERROR);$_GET=array("profile"=>"standard", 
  "locale"=>"en", "id"=>"1"); $_REQUEST=&$_GET;define("DRUSH_SITE_INSTALL6", TRUE);
  $_SERVER["SERVER_SOFTWARE"] = NULL;$_SERVER["SCRIPT_NAME"] = "/install.php";
  $_SERVER["HTTP_HOST"] = "finigan";$_SERVER["REMOTE_ADDR"] = "127.0.0.1";
  function _cli_cookie_print(){print(serialize(array(session_name()=>session_id())));}
register_shutdown_function("_cli_cookie_print"); include("/var/local/drupal-6/drupal-6.x-dev/install.php");'
  a:1:{s:36:"SESS04de73efd1630d660efd588e00d71d38";s:0:"";}
Drush bootstrap phase : _drush_bootstrap_drupal_database() [23.88 sec, 6.75 MB]                      [bootstrap]
Successfully connected to the Drupal database. [23.88 sec, 6.75 MB]                                  [bootstrap]
pg_query(): Query failed: ERROR:  relation "variable" does not exist                                 [warning]
LINE 1: SELECT value FROM variable WHERE name = 'install_task'
                          ^ database.pgsql.inc:138 [23.94 sec, 7.1 MB]
ERROR:  relation &quot;variable&quot; does not exist                                                 [warning]
LINE 1: SELECT value FROM variable WHERE name = &#039;install_task&#039;
                          ^
query: SELECT value FROM variable WHERE name = &#039;install_task&#039; 
  database.pgsql.inc:159 [23.94 sec, 7.11MB]
Undefined variable: result site_install_6.inc:125 [23.94 sec, 7.11 MB]                               [notice]
Executing: php -r '$_GET=array("profile"=>"standard", "locale"=>"en", "id"=>"1"); 
  $_REQUEST=&$_GET;define("DRUSH_SITE_INSTALL6", TRUE);$_SERVER["SERVER_SOFTWARE"] = NULL;
  $_SERVER["SCRIPT_NAME"] = "/install.php";$_SERVER["HTTP_HOST"] = "finigan";
  $_SERVER["REMOTE_ADDR"] = "127.0.0.1";
  $_COOKIE=unserialize("a:1:{s:36:\"SESS04de73efd1630d660efd588e00d71d38\";s:0:\"\";}"); 
  $_GET["op"]="start"; include("/var/local/drupal-6/drupal-6.x-dev/install.php");'
  PHP Warning:  require_once(./profiles/standard/standard.profile): 
  failed to open stream: No such file or directory in 
  /var/local/drupal-6/drupal-6.x-dev/install.php on line 94
  PHP Fatal error:  require_once(): Failed opening required 
  './profiles/standard/standard.profile' (include_path='.:/usr/share/pear:/usr/share/php') 
  in /var/local/drupal-6/drupal-6.x-dev/install.php on line 94
pg_query(): Query failed: ERROR:  relation "variable" does not exist                                 [warning]
LINE 1: SELECT value FROM variable WHERE name = 'install_task'
                          ^ database.pgsql.inc:138 [24.29 sec, 7.11 MB]
ERROR:  relation &quot;variable&quot; does not exist                                                 [warning]
LINE 1: SELECT value FROM variable WHERE name = &#039;install_task&#039;
                          ^
query: SELECT value FROM variable WHERE name = &#039;install_task&#039; 
  database.pgsql.inc:159 [24.3 sec, 7.11 MB]
Undefined variable: result site_install_6.inc:125 [24.3 sec, 7.11 MB]                                [notice]
The site install task '' failed. [24.3 sec, 7.11 MB]                                                 [error]
Command dispatch complete [24.31 sec, 7.08 MB]                                                       [notice]
 Timer  Cum (sec)  Count  Avg (msec) 
 page   21.23      1      21229.66   

Peak memory usage was 7.15 MB [24.31 sec, 7.08 MB]                                                   [memory]
[root@delta drupal-6.x-dev]#